Off grid parrelled mismatched inverters

[Gros21]

baicly im considering going off grid.
If i run dual inverters for contingency one dies and im unable to get a identical one, what happens as you would want them in phase, however the inverters will/should also have a 220v in.

Then if they are miss matched how will they share load eg a 5kw unit with a 6kw unit.

Even if i go a more well know brand such as Victron there is no knowing of in 5years if the same model will be arround

 

[Daddy Tanuki]

baicly im considering going off grid.
If i run dual inverters for contingency one dies and im unable to get a identical one, what happens as you would want them in phase, however the inverters will/should also have a 220v in.

Then if they are miss matched how will they share load eg a 5kw unit with a 6kw unit.

Even if i go a more well know brand such as Victron there is no knowing of in 5years if the same model will be arround

Your options are simple as you are the power company you need redundancy in your system design, as such two is one and one is none. I currently use two
Magnums to power my house and shop and as such I have two spares as well as a fee spare parts for the known issues

 

[Glock24]

This might give you an idea of how to do it, although I don't know if other brands have something similar to this grid assist. Still might work with a Victron and your current inverter.

 

[crossy]

As @Daddy Tanuki notes you need spare capacity (3 inverters?) so if one dies all is not lost whilst it's getting fixed.

It's worth considering one of the hybrid inverters that can do AC coupling on the Gen/Aux port (Deye / Sol-Ark for example). That would allow you to hook up a cheap grid-tie unit to keep the power flowing whilst you decide what to do.

 

[crossy]

This might give you an idea of how to do it, although I don't know if other brands have something similar to this grid assist. Still might work with a Victron and your current inverter.

I just love this guy's excitement when something functions as expected